High MLD between signals decoded from low bitrate fixed- and floating-point encoded OSBA inputs

Basic info

• Float reference:
  • Encoder (float): fbeb5ef8
  • Decoder (float): fbeb5ef8
• Fixed point:
  • Encoder (fixed): 7847d456

Bug description

MLD > 20 were observed between the signals decoded from fixed- and floating-point encoded OSBA inputs. One example is as follows:

Tested at 13.2 and 32 kbps.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1138

Command lines: see cmds.txt in Box folder